Today we going to learn how to download nessus offline plugins. Before we proceed, we need to activate nessus with pro license key. I am assuming that the nessus is activated via offline and the license key is not used anywhere else. Lets say, in windows server nessus is installed. Navigate the below location from command prompt and run below command: C:\Program Files\Tenable\Nessus\nessuscli.exe fetch --challenge You will get the challenge id. Copy that. Now go to the below link: https://plugins.nessus.org/offline.php Provide the challenge id and license code. Once you submit, you will get Custom URL for downloading offline plugins. Save the link as favorite. Now do the following to install the plugins: Install plugins TAR file via the Tenable Nessus user interface: On the offline Tenable Nessus system, login first. In the top navigation bar of the Tenable Nessus user interface, click Settings . The About page appears. Click the Software Update tab. In the uppe...